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  1. #1
    Join Date
    Mar 2013
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    WI
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    Default removing rust on wooden columns

    Location: WI

    Rust is showing up on our wooden columns located on our front porch. The weird part is that the rust is more apparent on one column and not on the other. What would be the easiest way to remove the dust? In the past I have used high quality exterior paint and just painted over it. That obviously has not worked well. I am far from a handyman, but I'm willing to try.

    Last edited by valpd; 03-30-2013 at 09:04 AM.

  2. #2
    Join Date
    Aug 2007
    Location
    Portland, Oregon, formerly of Chicago
    Posts
    1,776

    Default Re: removing rust on wooden columns

    Valpd,

    Did you spot prime the rusty nails first with an oil based primer? The water in latex paints will aggravate the rust. Latex is also more vapor permeable than oil.

    Also, your decorative footings will last longer if they are kept out of contact with the cement floor. Cement wicks water up into the wood. Mount them about 1/16th of on inch off the surface, then caulk the resulting gap with a quality caulk, preferably a urethane .

  3. #3
    Join Date
    Mar 2013
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    WI
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    Default Re: removing rust on wooden columns

    Quote Originally Posted by ordjen View Post
    Valpd,

    Did you spot prime the rusty nails first with an oil based primer? The water in latex paints will aggravate the rust. Latex is also more vapor permeable than oil.

    Also, your decorative footings will last longer if they are kept out of contact with the cement floor. Cement wicks water up into the wood. Mount them about 1/16th of on inch off the surface, then caulk the resulting gap with a quality caulk, preferably a urethane .
    I did not spot prime. What primer/paint would you recommend that I use? If you look close the footings are not in contact with the cement. It sounds like I should use a urethane caulk afterwards.

  4. #4
    Join Date
    Aug 2007
    Location
    Portland, Oregon, formerly of Chicago
    Posts
    1,776

    Default Re: removing rust on wooden columns

    valpd,

    Just spot prime the rusty areas with an oil based quick dry primer such as CoverStain, then face of the area with paint.

  5. #5
    Join Date
    Mar 2013
    Location
    WI
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    17

    Default Re: removing rust on wooden columns

    Quote Originally Posted by ordjen View Post
    valpd,

    Just spot prime the rusty areas with an oil based quick dry primer such as CoverStain, then face of the area with paint.
    I might as well just paint both columns completely and caulk the bottom.

  6. #6
    Join Date
    Mar 2013
    Location
    WI
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    17

    Default Re: removing rust on wooden columns

    Quote Originally Posted by ordjen View Post
    valpd,

    Just spot prime the rusty areas with an oil based quick dry primer such as CoverStain, then face of the area with paint.
    Is there a specific paint that you recommend?

  7. #7
    Join Date
    Mar 2008
    Location
    nova scotia, canada
    Posts
    1,522

    Default Re: removing rust on wooden columns

    b.i.n shellac based primer.. that column should have been built using stainless steel nails
    fire up the saw and make some dust

  8. #8
    Join Date
    Mar 2013
    Location
    WI
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    Default Re: removing rust on wooden columns

    Quote Originally Posted by jkirk View Post
    b.i.n shellac based primer.. that column should have been built using stainless steel nails
    Thanks. Since this primer is white do I paint afterwards. If I should paint what type of paint is recommended? Its in the 50's here in WI. What is the ideal temperature for painting something like this?

  9. #9
    Join Date
    Mar 2008
    Location
    nova scotia, canada
    Posts
    1,522

    Default Re: removing rust on wooden columns

    yes you have to paint over the primer. the primer is simply a sealer that grabs the paint. you might want to wait a little longer before painting it. its still a little cool though im not sure of hte exact tempearture conversion from fahrenhiet to celcius. typically here 10 degress celcius is about ideal. above 25 and it dries too fast. below zero and it just freezes before it cures
    fire up the saw and make some dust

  10. #10
    Join Date
    Mar 2013
    Location
    WI
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    17

    Default Re: removing rust on wooden columns

    Quote Originally Posted by jkirk View Post
    yes you have to paint over the primer. the primer is simply a sealer that grabs the paint. you might want to wait a little longer before painting it. its still a little cool though im not sure of hte exact tempearture conversion from fahrenhiet to celcius. typically here 10 degress celcius is about ideal. above 25 and it dries too fast. below zero and it just freezes before it cures
    What type of paint would be ideal to use? So it sounds like I would need to wait until its 50-60 degrees. Should I use a paint brush or a roller? Also, what size primer and paint can should ii look at getting for these 2 columns?

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